For those who don't know. Thanks to xatmos we now have a FaceRipper(http://www.nexusmods.com/fallout4/mods/3878/). So basicly you can just change you're character's face without starting a new game. I'll just copy-past the instructions for you guys.
1  -  Download the FaceRipper (link above)
2  -  Browse for your input save, the save with the face you want to use.
3  -  Browse for your target save, the save with the progress, stats, etc. you want to use.
4  -  Hit Transfer Face and the new merged save will be created.
5  -  Endorse FaceRipper (i think he deserved you're click)

P.S. It's my first post on Nexus, so feel free to tell me about any mistakes.
I'm using E3FX by Drogean (http://www.nexusmods.com/fallout4/mods/124/) if someone's interesting.
The tattoo's is "Brotherhood of Steel TATTOOS" by Aendovah (http://www.nexusmods.com/fallout4/mods/4009/)